XML 299 R156.htm IDEA: XBRL DOCUMENT v3.20.1

Financial Risks - Summary of Realized Gains and (Losses) on Debt Securities (Detail) - EUR (€) € in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Credit Quality Of Debt Securities [abstract]
Gross realized gains	€ 405	€ 156
Gross realized losses	€ (66)	€ (378)

X

- Definition

Available for sale debt securities realized gains.

+ References

No definition available.

+ Details

Name:	aeg_AvailableForSaleDebtSecuritiesRealizedGains
Namespace Prefix:	aeg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Available for sale debt securities realized losses.

+ References

No definition available.

+ Details

Name:	aeg_AvailableForSaleDebtSecuritiesRealizedLosses
Namespace Prefix:	aeg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Disclosure Of Credit Quality Of Debt Securities [abstract].

+ References

No definition available.

+ Details

Name:	aeg_DisclosureOfCreditQualityOfDebtSecuritiesAbstract
Namespace Prefix:	aeg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration